/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:43:48,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:43:48,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:43:48,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:43:48,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:43:48,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:43:48,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:43:48,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:43:48,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:43:48,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:43:48,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:43:48,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:43:48,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:43:48,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:43:48,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:43:48,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:43:48,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:43:48,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:43:48,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:43:48,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:43:48,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:43:48,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:43:48,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:43:48,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:43:48,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 19:43:48,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 19:43:48,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 19:43:48,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 19:43:48,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 19:43:48,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 19:43:48,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 19:43:48,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 19:43:48,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 19:43:48,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 19:43:48,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 19:43:48,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 19:43:48,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 19:43:48,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 19:43:48,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:43:48,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:43:48,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:43:48,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 19:43:48,346 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:43:48,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:43:48,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:43:48,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:43:48,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:43:48,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:43:48,348 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:43:48,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:43:48,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:43:48,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:43:48,350 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:43:48,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:43:48,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:43:48,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:43:48,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:43:48,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:43:48,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:43:48,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:43:48,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:43:48,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:43:48,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:43:48,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:43:48,354 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:43:48,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:43:48,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:43:48,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:43:48,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:43:48,619 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:43:48,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-03-15 19:43:48,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8236a3051/def1f53f13c048179df1e3944893c644/FLAG23f4e4480 [2022-03-15 19:43:49,053 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:43:49,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c [2022-03-15 19:43:49,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8236a3051/def1f53f13c048179df1e3944893c644/FLAG23f4e4480 [2022-03-15 19:43:49,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8236a3051/def1f53f13c048179df1e3944893c644 [2022-03-15 19:43:49,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:43:49,071 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:43:49,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:43:49,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:43:49,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:43:49,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,075 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0b629d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49, skipping insertion in model container [2022-03-15 19:43:49,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:43:49,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:43:49,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-03-15 19:43:49,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:43:49,275 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:43:49,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-send-receive.wvr.c[3107,3120] [2022-03-15 19:43:49,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:43:49,308 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:43:49,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49 WrapperNode [2022-03-15 19:43:49,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:43:49,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:43:49,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:43:49,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:43:49,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,342 INFO L137 Inliner]: procedures = 25, calls = 52, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 161 [2022-03-15 19:43:49,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:43:49,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:43:49,343 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:43:49,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:43:49,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:43:49,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:43:49,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:43:49,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:43:49,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (1/1) ... [2022-03-15 19:43:49,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:43:49,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:43:49,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 19:43:49,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 19:43:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:43:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:43:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:43:49,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:43:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:43:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:43:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:43:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:43:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 19:43:49,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 19:43:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:43:49,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 19:43:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 19:43:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 19:43:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:43:49,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:43:49,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:43:49,449 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 19:43:49,518 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:43:49,520 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:43:49,776 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:43:49,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:43:49,891 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-15 19:43:49,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:43:49 BoogieIcfgContainer [2022-03-15 19:43:49,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:43:49,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:43:49,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:43:49,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:43:49,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:43:49" (1/3) ... [2022-03-15 19:43:49,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b084a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:43:49, skipping insertion in model container [2022-03-15 19:43:49,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:43:49" (2/3) ... [2022-03-15 19:43:49,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555b084a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:43:49, skipping insertion in model container [2022-03-15 19:43:49,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:43:49" (3/3) ... [2022-03-15 19:43:49,899 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-send-receive.wvr.c [2022-03-15 19:43:49,903 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:43:49,903 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:43:49,903 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:43:49,903 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:43:49,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,947 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,948 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,948 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,948 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,949 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,950 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,950 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,950 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,950 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,951 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,951 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,952 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,953 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,954 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,954 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,954 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,954 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,955 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,956 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,957 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,958 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,958 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,958 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,958 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,959 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,959 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,966 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,971 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,972 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,973 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,974 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,977 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,978 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,979 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,979 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_~b~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,980 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,981 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:43:49,996 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 19:43:50,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:43:50,049 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 19:43:50,049 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 19:43:50,066 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:43:50,073 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 142 transitions, 308 flow [2022-03-15 19:43:50,076 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 142 transitions, 308 flow [2022-03-15 19:43:50,078 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 142 transitions, 308 flow [2022-03-15 19:43:50,168 INFO L129 PetriNetUnfolder]: 10/139 cut-off events. [2022-03-15 19:43:50,168 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-03-15 19:43:50,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 139 events. 10/139 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 116. Up to 2 conditions per place. [2022-03-15 19:43:50,176 INFO L116 LiptonReduction]: Number of co-enabled transitions 1308 [2022-03-15 19:43:55,069 INFO L131 LiptonReduction]: Checked pairs total: 2325 [2022-03-15 19:43:55,069 INFO L133 LiptonReduction]: Total number of compositions: 130 [2022-03-15 19:43:55,075 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 30 transitions, 84 flow [2022-03-15 19:43:55,107 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:55,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 19:43:55,117 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:55,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:55,118 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:55,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1612277053, now seen corresponding path program 1 times [2022-03-15 19:43:55,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:55,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208208422] [2022-03-15 19:43:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:55,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:55,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208208422] [2022-03-15 19:43:55,428 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208208422] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:55,428 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:55,428 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:43:55,430 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1306480618] [2022-03-15 19:43:55,431 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:55,437 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:55,465 INFO L252 McrAutomatonBuilder]: Finished intersection with 69 states and 136 transitions. [2022-03-15 19:43:55,465 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:55,962 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [463#(not (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256))), 464#(not (= (mod ~v_assert~0 256) 0))] [2022-03-15 19:43:55,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 19:43:55,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:55,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 19:43:55,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 19:43:55,986 INFO L87 Difference]: Start difference. First operand has 157 states, 156 states have (on average 2.9871794871794872) internal successors, (466), 156 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:56,123 INFO L93 Difference]: Finished difference Result 143 states and 411 transitions. [2022-03-15 19:43:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:43:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 19:43:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:56,135 INFO L225 Difference]: With dead ends: 143 [2022-03-15 19:43:56,136 INFO L226 Difference]: Without dead ends: 143 [2022-03-15 19:43:56,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:43:56,140 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 51 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:56,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 1 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:43:56,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-03-15 19:43:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 133. [2022-03-15 19:43:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.909090909090909) internal successors, (384), 132 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 384 transitions. [2022-03-15 19:43:56,189 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 384 transitions. Word has length 19 [2022-03-15 19:43:56,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:56,189 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 384 transitions. [2022-03-15 19:43:56,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 384 transitions. [2022-03-15 19:43:56,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 19:43:56,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:56,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:56,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:43:56,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:56,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1188298503, now seen corresponding path program 2 times [2022-03-15 19:43:56,196 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:56,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360733089] [2022-03-15 19:43:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:56,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:56,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:56,276 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:56,276 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360733089] [2022-03-15 19:43:56,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360733089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:56,276 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:56,276 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:43:56,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1202753391] [2022-03-15 19:43:56,277 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:56,279 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:56,285 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 56 transitions. [2022-03-15 19:43:56,285 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:56,383 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [881#(not (= (mod ~v_assert~0 256) 0)), 880#(not (= (mod |thread2Thread1of1ForFork2_~cond~1#1| 256) 0))] [2022-03-15 19:43:56,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 19:43:56,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:56,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 19:43:56,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-15 19:43:56,385 INFO L87 Difference]: Start difference. First operand 133 states and 384 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:56,507 INFO L93 Difference]: Finished difference Result 157 states and 444 transitions. [2022-03-15 19:43:56,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:43:56,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 19:43:56,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:56,511 INFO L225 Difference]: With dead ends: 157 [2022-03-15 19:43:56,511 INFO L226 Difference]: Without dead ends: 157 [2022-03-15 19:43:56,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:43:56,512 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:56,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 2 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:43:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-03-15 19:43:56,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 133. [2022-03-15 19:43:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.9242424242424243) internal successors, (386), 132 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 386 transitions. [2022-03-15 19:43:56,534 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 386 transitions. Word has length 19 [2022-03-15 19:43:56,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:56,535 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 386 transitions. [2022-03-15 19:43:56,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,535 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 386 transitions. [2022-03-15 19:43:56,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-15 19:43:56,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:56,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:56,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:43:56,536 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash 821934395, now seen corresponding path program 3 times [2022-03-15 19:43:56,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:56,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216571588] [2022-03-15 19:43:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:56,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:56,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:56,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216571588] [2022-03-15 19:43:56,620 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216571588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:56,620 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:56,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 19:43:56,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [801522375] [2022-03-15 19:43:56,621 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:56,623 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:56,629 INFO L252 McrAutomatonBuilder]: Finished intersection with 37 states and 57 transitions. [2022-03-15 19:43:56,629 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:56,772 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [1314#(and (<= 1 ~v_assert~0) (<= (div ~v_assert~0 256) 0)), 1312#(not (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256))), 1313#(not (= (mod ~v_assert~0 256) 0))] [2022-03-15 19:43:56,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 19:43:56,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:56,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 19:43:56,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:43:56,775 INFO L87 Difference]: Start difference. First operand 133 states and 386 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:56,953 INFO L93 Difference]: Finished difference Result 211 states and 616 transitions. [2022-03-15 19:43:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 19:43:56,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-03-15 19:43:56,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:56,955 INFO L225 Difference]: With dead ends: 211 [2022-03-15 19:43:56,955 INFO L226 Difference]: Without dead ends: 151 [2022-03-15 19:43:56,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-15 19:43:56,956 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:56,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 1 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:43:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-03-15 19:43:56,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2022-03-15 19:43:56,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 138 states have (on average 2.869565217391304) internal successors, (396), 138 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 396 transitions. [2022-03-15 19:43:56,963 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 396 transitions. Word has length 19 [2022-03-15 19:43:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:56,963 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 396 transitions. [2022-03-15 19:43:56,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 396 transitions. [2022-03-15 19:43:56,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 19:43:56,965 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:56,965 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:56,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:43:56,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:56,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2025777540, now seen corresponding path program 1 times [2022-03-15 19:43:56,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:56,972 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681321624] [2022-03-15 19:43:56,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:57,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:57,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:57,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681321624] [2022-03-15 19:43:57,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681321624] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:57,083 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:57,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 19:43:57,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [374616411] [2022-03-15 19:43:57,083 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:57,087 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:57,094 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 65 transitions. [2022-03-15 19:43:57,094 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:57,230 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:43:57,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 19:43:57,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:57,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 19:43:57,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:43:57,234 INFO L87 Difference]: Start difference. First operand 139 states and 396 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:57,267 INFO L93 Difference]: Finished difference Result 125 states and 358 transitions. [2022-03-15 19:43:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:43:57,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-03-15 19:43:57,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:57,269 INFO L225 Difference]: With dead ends: 125 [2022-03-15 19:43:57,269 INFO L226 Difference]: Without dead ends: 125 [2022-03-15 19:43:57,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:43:57,274 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 5 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:57,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:43:57,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-03-15 19:43:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-03-15 19:43:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 2.8870967741935485) internal successors, (358), 124 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 358 transitions. [2022-03-15 19:43:57,288 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 358 transitions. Word has length 21 [2022-03-15 19:43:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:57,288 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 358 transitions. [2022-03-15 19:43:57,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 358 transitions. [2022-03-15 19:43:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 19:43:57,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:57,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:57,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:43:57,290 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:57,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:57,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1772310930, now seen corresponding path program 1 times [2022-03-15 19:43:57,292 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:57,292 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651347318] [2022-03-15 19:43:57,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:57,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:43:57,385 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:57,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651347318] [2022-03-15 19:43:57,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651347318] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:57,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:57,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:43:57,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1988617254] [2022-03-15 19:43:57,386 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:57,389 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:57,401 INFO L252 McrAutomatonBuilder]: Finished intersection with 60 states and 104 transitions. [2022-03-15 19:43:57,401 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:57,484 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6 [2022-03-15 19:43:57,649 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:43:57,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:43:57,649 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:57,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:43:57,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:43:57,650 INFO L87 Difference]: Start difference. First operand 125 states and 358 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:57,705 INFO L93 Difference]: Finished difference Result 147 states and 395 transitions. [2022-03-15 19:43:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 19:43:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-03-15 19:43:57,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:57,706 INFO L225 Difference]: With dead ends: 147 [2022-03-15 19:43:57,706 INFO L226 Difference]: Without dead ends: 126 [2022-03-15 19:43:57,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 19:43:57,707 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:57,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 9 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:43:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-03-15 19:43:57,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2022-03-15 19:43:57,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 2.872) internal successors, (359), 125 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 359 transitions. [2022-03-15 19:43:57,712 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 359 transitions. Word has length 23 [2022-03-15 19:43:57,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:57,712 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 359 transitions. [2022-03-15 19:43:57,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:57,712 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 359 transitions. [2022-03-15 19:43:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-15 19:43:57,713 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:57,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:57,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 19:43:57,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:57,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:57,713 INFO L85 PathProgramCache]: Analyzing trace with hash 550828195, now seen corresponding path program 1 times [2022-03-15 19:43:57,714 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:57,714 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074303843] [2022-03-15 19:43:57,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:57,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:57,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 19:43:57,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:57,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074303843] [2022-03-15 19:43:57,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074303843] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:43:57,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:43:57,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:43:57,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1166631961] [2022-03-15 19:43:57,766 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:43:57,769 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:43:57,781 INFO L252 McrAutomatonBuilder]: Finished intersection with 61 states and 105 transitions. [2022-03-15 19:43:57,782 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:43:58,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2596#(not (= (mod |thread2Thread1of1ForFork2_~b~0#1| 256) 0))] [2022-03-15 19:43:58,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:43:58,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:43:58,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:43:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:43:58,007 INFO L87 Difference]: Start difference. First operand 126 states and 359 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:58,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:43:58,069 INFO L93 Difference]: Finished difference Result 202 states and 547 transitions. [2022-03-15 19:43:58,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 19:43:58,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-03-15 19:43:58,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:43:58,071 INFO L225 Difference]: With dead ends: 202 [2022-03-15 19:43:58,072 INFO L226 Difference]: Without dead ends: 202 [2022-03-15 19:43:58,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:43:58,073 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 24 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:43:58,073 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 10 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:43:58,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-03-15 19:43:58,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 162. [2022-03-15 19:43:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.8385093167701863) internal successors, (457), 161 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:58,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 457 transitions. [2022-03-15 19:43:58,079 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 457 transitions. Word has length 24 [2022-03-15 19:43:58,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:43:58,080 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 457 transitions. [2022-03-15 19:43:58,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:43:58,080 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 457 transitions. [2022-03-15 19:43:58,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-15 19:43:58,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:43:58,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:43:58,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 19:43:58,081 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:43:58,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:43:58,082 INFO L85 PathProgramCache]: Analyzing trace with hash -325209233, now seen corresponding path program 1 times [2022-03-15 19:43:58,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:43:58,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210121469] [2022-03-15 19:43:58,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:58,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:43:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:58,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:43:58,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210121469] [2022-03-15 19:43:58,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210121469] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:43:58,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031014674] [2022-03-15 19:43:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:43:58,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:43:58,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:43:58,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:43:58,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 19:43:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:43:58,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-15 19:43:58,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:43:58,604 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-15 19:43:58,679 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:43:58,725 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:43:58,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:43:58,860 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 19:43:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:43:58,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:43:59,523 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:43:59,524 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 79 [2022-03-15 19:43:59,537 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:43:59,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 976 treesize of output 944 [2022-03-15 19:43:59,554 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:43:59,554 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 928 treesize of output 800 [2022-03-15 19:43:59,571 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:43:59,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 784 treesize of output 728 [2022-03-15 19:43:59,590 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:43:59,590 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 712 treesize of output 692 [2022-03-15 19:44:01,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:44:01,866 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031014674] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 19:44:01,866 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 19:44:01,866 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 11] total 28 [2022-03-15 19:44:01,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1822084270] [2022-03-15 19:44:01,867 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:44:01,870 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:44:01,882 INFO L252 McrAutomatonBuilder]: Finished intersection with 61 states and 105 transitions. [2022-03-15 19:44:01,883 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:44:03,520 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [3292#(and (or (<= (+ ~back~0 1) ~front~0) (not (= (select (select |#memory_int| ~queue~0.base) (+ ~queue~0.offset (* ~back~0 4))) 1)) (<= ~n~0 ~back~0) (<= 0 (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset)))) (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256)) (< ~front~0 0)) (or (<= (+ ~back~0 1) ~front~0) (not (= (select (select |#memory_int| ~queue~0.base) (+ ~queue~0.offset (* ~back~0 4))) 1)) (<= (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset))) 1) (<= ~n~0 ~back~0) (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256)) (< ~front~0 0))), 3293#(and (or (<= ~back~0 ~front~0) (<= ~n~0 ~front~0) (<= 0 (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset)))) (= (mod ~v_assert~0 256) 0) (< ~front~0 0)) (or (<= (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset))) 1) (<= ~back~0 ~front~0) (<= ~n~0 ~front~0) (= (mod ~v_assert~0 256) 0) (< ~front~0 0))), 3290#(not (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256))), 3243#(not (<= (mod ~v_assert~0 256) 0)), 3291#(and (or (<= ~back~0 ~front~0) (<= ~n~0 ~front~0) (<= 0 (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset)))) (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256)) (< ~front~0 0)) (or (<= (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset))) 1) (<= ~back~0 ~front~0) (<= ~n~0 ~front~0) (= 0 (mod |thread1Thread1of1ForFork1_~cond~0#1| 256)) (< ~front~0 0))), 3294#(and (or (<= (+ ~back~0 1) ~front~0) (not (= (select (select |#memory_int| ~queue~0.base) (+ ~queue~0.offset (* ~back~0 4))) 1)) (<= ~n~0 ~back~0) (<= 0 (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset)))) (= (mod ~v_assert~0 256) 0) (< ~front~0 0)) (or (<= (+ ~back~0 1) ~front~0) (not (= (select (select |#memory_int| ~queue~0.base) (+ ~queue~0.offset (* ~back~0 4))) 1)) (<= (+ ~sum~0 (select (select |#memory_int| ~queue~0.base) (+ (* ~front~0 4) ~queue~0.offset))) 1) (<= ~n~0 ~back~0) (= (mod ~v_assert~0 256) 0) (< ~front~0 0)))] [2022-03-15 19:44:03,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 19:44:03,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:44:03,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 19:44:03,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=906, Unknown=13, NotChecked=0, Total=1122 [2022-03-15 19:44:03,522 INFO L87 Difference]: Start difference. First operand 162 states and 457 transitions. Second operand has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:44:04,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:44:04,297 INFO L93 Difference]: Finished difference Result 373 states and 1034 transitions. [2022-03-15 19:44:04,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 19:44:04,297 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-03-15 19:44:04,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:44:04,299 INFO L225 Difference]: With dead ends: 373 [2022-03-15 19:44:04,299 INFO L226 Difference]: Without dead ends: 303 [2022-03-15 19:44:04,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 49 SyntacticMatches, 8 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=372, Invalid=1595, Unknown=13, NotChecked=0, Total=1980 [2022-03-15 19:44:04,301 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 181 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 19:44:04,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 3 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 19:44:04,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-03-15 19:44:04,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 232. [2022-03-15 19:44:04,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 231 states have (on average 2.7965367965367967) internal successors, (646), 231 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:44:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 646 transitions. [2022-03-15 19:44:04,311 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 646 transitions. Word has length 24 [2022-03-15 19:44:04,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:44:04,312 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 646 transitions. [2022-03-15 19:44:04,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.25) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:44:04,314 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 646 transitions. [2022-03-15 19:44:04,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-15 19:44:04,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:44:04,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:44:04,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 19:44:04,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:44:04,539 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 19:44:04,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:44:04,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1328293085, now seen corresponding path program 2 times [2022-03-15 19:44:04,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:44:04,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361330227] [2022-03-15 19:44:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:44:04,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:44:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:44:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:44:04,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:44:04,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361330227] [2022-03-15 19:44:04,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361330227] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:44:04,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860304504] [2022-03-15 19:44:04,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 19:44:04,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:44:04,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:44:04,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:44:04,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 19:44:04,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 19:44:04,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 19:44:04,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-15 19:44:04,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:44:05,048 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-15 19:44:05,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:44:05,139 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:44:05,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:44:05,270 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 19:44:05,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 19:44:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:44:05,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:44:05,511 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_220 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_220) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))))) (forall ((v_ArrVal_220 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_220) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) 1))) is different from false [2022-03-15 19:44:05,596 WARN L838 $PredicateComparison]: unable to prove that (or (<= c_~n~0 c_~back~0) (< c_~back~0 0) (and (forall ((v_ArrVal_220 (Array Int Int))) (<= 0 (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_220) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))))) (forall ((v_ArrVal_220 (Array Int Int))) (<= (+ c_~sum~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_220) c_~queue~0.base) (+ c_~queue~0.offset (* c_~front~0 4)))) 1))) (not (= (select (select |c_#memory_int| c_~queue~0.base) (+ c_~queue~0.offset (* c_~back~0 4))) 1))) is different from false [2022-03-15 19:44:05,829 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:44:05,829 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 76 [2022-03-15 19:44:05,840 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:44:05,840 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1836 treesize of output 1756 [2022-03-15 19:44:05,867 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:44:05,867 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1740 treesize of output 1612 [2022-03-15 19:44:05,881 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1481 treesize of output 1433 [2022-03-15 19:44:05,900 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:44:05,901 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1548 treesize of output 1492 [2022-03-15 19:44:05,917 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1373 treesize of output 1181 [2022-03-15 19:44:05,945 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-15 19:44:05,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 19:44:06,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-03-15 19:44:06,162 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-15 19:44:06,164 INFO L158 Benchmark]: Toolchain (without parser) took 17093.98ms. Allocated memory was 205.5MB in the beginning and 362.8MB in the end (delta: 157.3MB). Free memory was 154.4MB in the beginning and 330.1MB in the end (delta: -175.7MB). Peak memory consumption was 191.3MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,165 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 170.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:44:06,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.08ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 178.5MB in the end (delta: -24.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.87ms. Allocated memory is still 205.5MB. Free memory was 178.5MB in the beginning and 176.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,165 INFO L158 Benchmark]: Boogie Preprocessor took 30.93ms. Allocated memory is still 205.5MB. Free memory was 176.4MB in the beginning and 175.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,165 INFO L158 Benchmark]: RCFGBuilder took 518.47ms. Allocated memory is still 205.5MB. Free memory was 174.7MB in the beginning and 155.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,166 INFO L158 Benchmark]: TraceAbstraction took 16270.07ms. Allocated memory was 205.5MB in the beginning and 362.8MB in the end (delta: 157.3MB). Free memory was 155.4MB in the beginning and 330.1MB in the end (delta: -174.7MB). Peak memory consumption was 192.9MB. Max. memory is 8.0GB. [2022-03-15 19:44:06,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 205.5MB. Free memory is still 170.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 237.08ms. Allocated memory is still 205.5MB. Free memory was 154.2MB in the beginning and 178.5MB in the end (delta: -24.3MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.87ms. Allocated memory is still 205.5MB. Free memory was 178.5MB in the beginning and 176.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.93ms. Allocated memory is still 205.5MB. Free memory was 176.4MB in the beginning and 175.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 518.47ms. Allocated memory is still 205.5MB. Free memory was 174.7MB in the beginning and 155.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 16270.07ms. Allocated memory was 205.5MB in the beginning and 362.8MB in the end (delta: 157.3MB). Free memory was 155.4MB in the beginning and 330.1MB in the end (delta: -174.7MB). Peak memory consumption was 192.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0s, 142 PlacesBefore, 36 PlacesAfterwards, 142 TransitionsBefore, 30 TransitionsAfterwards, 1308 CoEnabledTransitionPairs, 8 FixpointIterations, 76 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 130 TotalNumberOfCompositions, 2325 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1747, positive: 1668, positive conditional: 0, positive unconditional: 1668, negative: 79, negative conditional: 0, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 723, positive: 702, positive conditional: 0, positive unconditional: 702, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1747, positive: 966, positive conditional: 0, positive unconditional: 966, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 723, unknown conditional: 0, unknown unconditional: 723] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 68, Positive conditional cache size: 0, Positive unconditional cache size: 68, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-15 19:44:06,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...